Antenna for an alarm system



FIG. 1 is a rear elevational view of an antenna showing a first embodiment of my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a rear elevational view of an antenna showing a second embodiment of my new design;

FIG. 8 is a left side elevational view thereof;

FIG. 9 is a front elevational view thereof;

FIG. 10 is a right side elevational view thereof;

FIG. 11 is a top plan view thereof; and,

FIG. 12 is a bottom plan view thereof. 

The ornamental design of an antenna for an alarm system, as shown and described. 